Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Review UK Pick polygram.ink |
8% | 92% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Review UK → |
Polymarket polymarket.com |
8% | 92% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Review UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Review UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Review UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Review UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket Review UK.
Market context
Commercial traffic through the Strait of Hormuz is still far below normal, and the market only pays out if IMF Portwatch’s 7-day moving average of ship arrivals gets back to at least 60 before the end of June 2026. Live trackers currently describe the strait as effectively closed or at a standstill, with no commercial vessels observed transiting in some dashboards and only near-zero movements on others, so an 8% YES price fits a low-base-rate recovery case rather than a gradual normalisation[1][2]. For a programmatic workflow, this is the sort of event that is best monitored with a scheduled scraper or alert on the Portwatch series itself, because the settlement trigger is a published moving average, not a news headline.
The main historical reference is the sharp collapse in traffic after the 2026 Iran conflict escalation, when reporting said movements fell from roughly normal daily levels of around 60-plus ships to only a handful, or less, and at times to an effective halt[2][3][7]. That matters for reading the current probability: the market is not asking whether traffic improves marginally, but whether it recovers enough to clear a threshold that has been far above recent observed levels. If you are automating orders or using conditional logic, the useful comparison is the gap between the current reported baseline and the settlement line, not the direction of crude prices or broader risk sentiment.
Catalysts are likely to be operational rather than purely political: any ceasefire enforcement, maritime security announcement, de-escalation between Iran and the US or Israel, or a resumption in insurance and port-routing confidence could shift traffic quickly, but only if ships actually start transiting again[2][3]. NBC News reported that talks had made little progress and that the strait’s reopening was treated as a prerequisite in ceasefire discussions, which is a reminder that diplomatic headlines can matter only when they translate into vessel movements[3]. Traders watching this programmatically should also check for data latency from IMF Portwatch and for whether any short-lived reopening is sustained long enough to lift the 7-day average above 60, rather than just producing a one-day spike[2].
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Where can I trade this market with the lowest fees?
- On Polymarket Review UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket Review UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What does it cost to trade on Polymarket Review UK?
- Zero. Polymarket Review UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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